African pink tourmaline 1.006ct loose stone (phantom cut)
Sale price¥12,800
Paraiba tourmaline from Brazil 0.240ct loose (CuO:0.7%, MnO:3.8%)
Sale price¥59,800
Paraiba tourmaline from Brazil 0.232ct loose
Sale price¥58,800
Paraiba tourmaline from Brazil 0.239ct loose
Sale price¥59,800
Paraiba tourmaline from Brazil 0.204ct loose
Sale price¥36,800
Paraiba tourmaline from Brazil 3.1mm/0.151ct loose (CuO:1.1%, MnO:3.8%)
Sale price¥29,800
Paraiba tourmaline from Brazil 0.166ct loose (CuO:0.7%, MnO:3.6%)
Sale price¥32,800
Brazilian Paraiba tourmaline 0.116ct loose (CuO:0.9%, MnO:2.4%)
Sale price¥26,800
Brazilian Paraiba tourmaline 0.157ct loose (CuO:1.0%, MnO:3.7%)
Sale price¥32,800
Paraiba tourmaline from Brazil 0.086ct loose (CuO:1.5%, MnO:2.3%)
Sale price¥19,800
Paraiba tourmaline from Brazil 0.226ct loose (CuO:0.7%, MnO:3.6%)
Sale price¥49,800
Paraiba tourmaline from Brazil 0.167ct loose (CuO:1.6%, MnO:3.0%)
Sale price¥35,800
Paraiba tourmaline from Brazil 0.205ct loose (CuO:0.8%, MnO:3.1%)
Sale price¥45,800
Bicolor tourmaline 0.716ct loose (rose cut)
Sale price¥9,800
Bicolor tourmaline 0.572ct loose (rose cut)
Sale price¥14,800
Bicolor tourmaline 0.763ct loose (rose cut)
Sale price¥14,800
Bicolor tourmaline 0.901ct loose (rose cut)
Sale price¥15,800
Bicolor tourmaline 0.880ct loose
Sale price¥19,800
Pink tourmaline 1.404ct loose stone
Sale price¥19,800
Pink tourmaline 0.482ct loose stone
Sale price¥6,980
Bicolor tourmaline 1.339ct loose stone
Sale price¥19,800
Bicolor tourmaline 0.591ct loose (rose cut)
Sale price¥9,800
Bicolor tourmaline 0.435ct loose (rose cut)
Sale price¥6,980
Pt950 Oregon Sunstone 1.24ct Indigo Tourmaline Blue Diamond Ring
Sale price¥98,000
Cantera Opal 2.661ct loose
Sale price¥12,800
Brazilian Paraiba tourmaline 0.226ct loose (CuO:0.7%, MnO:2.5%)
Sale price¥45,800
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
Opal from Mexico 1.139ct loose
Sale price¥69,800
[Camellia cut] Mexican fire opal 1.270ct loose with patch
Sale price¥98,000
[Sakura Incut] Mexican water opal 6mm loose with patch
Sale price¥29,800
[Koshu Precious Stone Kiriko] Mexican Fire Opal 1.571ct Loose with Patch
Sale price¥79,800
[Dandelion cut] Pink tourmaline 6mm/0.674ct loose with patch
Sale price¥35,800
Pink tourmaline 1.567ct loose
Sale price¥22,800
Bicolor tourmaline 1.497ct loose
Sale price¥19,800
Bicolor tourmaline 1.024ct loose
Sale price¥22,800
Bicolor tourmaline 1.704ct loose
Sale price¥19,800
Bicolor tourmaline 1.440ct loose
Sale price¥15,800
Bicolor tourmaline 0.851ct loose
Sale price¥15,800
Pink tourmaline 0.734ct loose
Sale price¥9,800
Bicolor tourmaline 0.965ct loose
Sale price¥12,800
Pink tourmaline 0.553ct loose
Sale price¥8,800
Pink tourmaline 0.377ct loose
Sale price¥5,980
Pink tourmaline 1.011ct loose
Sale price¥12,800
Pink tourmaline 0.506ct loose
Sale price¥7,980

Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.
Written by KARATZ, book “Jewelry Illustrated Book”
The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.